Guide Silver Tipped

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These fish can grow to As juveniles they are a silvery-grey color with white undersides and black pectoral, pelvic and anal fins. The common names incorporate some of the characteristics such as the white tips on its pectoral and anal fins as well as the black linings on its dorsal and tail fins. The adult coloration is a little duller but it is still a very striking fish. One of the most interesting behaviors is the sounds they make, which can be quite loud. They produce audible clicking or grinding sounds by rubbing their pectoral fins against the sockets. Although the reason they make sounds is unknown, it may be used as signals between fish to keep the school together in murky waters or as an echolocation system similar to dolphins.

In murky habitats, this type of audio navigation works better than sight or lateral lines. These fish become more vocal if feeling threatened, which can be confusing when other fish kept in the same aquarium are make clicking sounds. Fish Keeping Difficulty The Silver-Tipped shark is moderately difficult to care for and so is not recommended for beginners.

Although small juveniles, usually under 4 inches in length, are sold as freshwater fish, as this fish matures it will need more brackish conditions higher salinity , up to full saltwater. They are suggested for an intermediate fish keeper because of the required brackish conditions, their adult size, and the need for companions. A 75 gallon aquarium is large enough for one specimen, but without the company of their own kind, the Colombian Shark Catfish will act nervous and somewhat neurotic.

A school of 3 or more of these fish is needed which will require at least a gallon aquarium. These are a peaceful fish but are predatory. As they grow smaller tankmates will become food. Foods and Feeding In the wild Shark Catfish feed on small fish, insects, crustaceans, and carrion. They are considered to be are omnivorous but prefer meaty foods. They use their barbels to detect food sources and similar to sharks, they are sensitive to electric fields which enables them to find food hidden under the gravel.

As juveniles they will generally eat all kinds of live, fresh, and flake foods. To keep a good balance give them a high quality flake food or pellet everyday. As they grow they will eat pellets, earthworms, mussels, prawn, strips of octopus or fish, and sinking tablets. Make sure to remove any dead and diseased fish as the Silver-Tip will feed on carcasses potentially getting sick itself. Be cautious when performing tank maintenance or handling the fish for any reason. They don't bother you when cleaning the tank, but be careful to not bump them.

This fish has a venom-producing gland on the first dorsal spine that can cause a cause a nasty, painful swelling.

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The sting is comparable to a bee sting which can be immersed into hot water. This will denature the venom and relieve the pain. Sometimes medical attention is required if the individual is particularly sensitive to the toxin. Aquarium Setup Silver-tipped Sharks are large, active fish that need ample swimming space. They grow fast, reaching a length just shy of 14 inches in about 2 years.

A minimum sized tank of 75 gallons can work for a single fish, but these are naturally nervous animals that need to be kept in a school of at least 3 individuals to thrive.

Tropical Fish Families

A gallon tank or more will be needed for a group. Signs that they are not comfortable include cowering in a corner or behind a filter. As this is a riverine species, good oxygenation and water flow is appreciated. Highly oxygenated water can be accomplished using an undergravel filter and a strong power head. Strong currents are appreciated, sometimes they will continually swim into the current produced by the filter.


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They can jump, so a fitted cover with subdued lighting works best. These are very active fish so need a lot of unobstructed swimming area. As juveniles they are pretty shy though, and will appreciate some cover. A good decor would be some driftwood or mangrove roots, which help mimic their surroundings in the wild. Most aquatic plants do not do well in brackish conditions but those that do will not be uprooted. The substrate like with most catfish should be soft and smooth to assure they do not injure their barbels. Freshwater is "okay" for juveniles under inches, but they are fast growers reaching their full size in about 2 years.

These small fish will soon need a slightly brackish environment of no less than 1.

Making 99% Pure Silver (tipped) Bullets

The amount of salt then needs to be increased as they grow. For an adult a specific gravity of 1. If all seems well with the environment but the fish demonstrate frantic swimming behavior, increasing the salinity can help.


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Social Behaviors The Silver-tipped Shark are generally a good community fish with fish their own size that are not territorial. In the wild they are a schooling fish so a group of at least three or more is recommended. If kept alone, they will be noticeably uncomfortable and exhibit skittish behavior such as darting about the aquarium and quickly swimming from top to bottom frequently. When settled in with other shark catfish, they will still be rather lively and often on the move, which is one of the attractions of keeping them.

They are one of a few catfish that is active during daylight hours. Don't keep them with fish that are much smaller since the shark catfish are predaceous and may eat smaller fish. A good choice for tankmates includes other larger schooling brackish water fish such as Monos, Scats, Garpikes, and even the more docile cichlids like green chromides.

Aggressive fish do not make good companions, nor do killifish or livebearers, which they will simply see as food. Sexual differences Difficult to sex when young, under 8 inches 20 cm , but mature females are thicker-bodied than males and have lighter fins. In the wild they are mouth-brooders with the male brooding the eggs. The issue with breeding these fish in aquariums is the difficulty replicating their natural breeding behavour. These fish will spawn in marine environments, the male carries the eggs in his mouth until incubation is complete.

Silver-tipped myotis - Wikipedia

Once this happens, the male swims upstream to deposit the fry into freshwater where they begin their lifecycle and migrate back to the brackish water to live and the the oceans to spawn. Fish Diseases Silver-tipped sharks are fairly hardy fish when mature but are subject to the same diseases as other tropical fish.

The best way to proactively prevent disease is to give them the proper environment and give them a well balanced diet. The closer to their natural habitat the less stress the fish will have, making them healthier and happy. A stressed fish is more likely to acquire disease. One of the most common freshwater fish ailments is ich. High nitrate levels can also cause Silver-tipped sharks to develop infected barbels; this makes it difficult for them to navigate and eat normally.

Silver-tipped Shark

Maintain nitrate levels below 20 ppm. Because they are a scaleless fish, catfish can be treated with pimafix or melafix but should not be treated with potassium permanganate or copper based medications. Malachite green or formalin can be used at one half to one fourth the recommended dosage. All medications should be used with caution. Although they may occasionally become torpid during cold nights, they do not hibernate.

They have been reported to feed on beetles , flies , lepidopterans , and spiders. Males and females roost together, and the females are promiscuous, mating with several of their partners. There is no particular breeding season over most parts of the range, and females typically give birth to two or three young every year. Fertilisation does not occur for up to three months after mating indicating that females can likely store sperm in their bodies for this time, thus being able to control the timing of their pregnancy.

The young are weaned at about one month of age, by which time all their permanent teeth have erupted. Females become sexually mature at just two months, although males are not fertile for six or seven months after birth. From Wikipedia, the free encyclopedia.

Silver-tipped imperial pigeon

Silver-tipped myotis Conservation status. International Union for Conservation of Nature. Retrieved 5 March Molecular Phylogenetics and Evolution. Archived from the original on Bulletin of the American Museum of Natural History. Mammal Species of the World: A Taxonomic and Geographic Reference 3rd ed. Johns Hopkins University Press. Canadian Journal of Zoology. Species of genus Myotis.